Název: Choice of polymer samples geometry for measurement of elongational viscosity using ser universal testing platform
Autoři: Filip, Petr ; Švrčinová, Petra
Typ dokumentu: Příspěvky z konference
Konference/Akce: Engineering Mechanics 2010, Svratka (CZ), 2010-05-10 / 2010-05-13
Rok: 2010
Jazyk: eng
Abstrakt: Generation of purely uniaxial elongational flow of polymer melts is very uneasy problem. It seems that each hitherto developed device for measurement of uniaxial elongational viscosity also produces - to some extent - a planar flow. During the last period there has been questioned - based on this reasoning - the applicability of a SER Universal Testing Platform and was recommended the range of rectangular dimensions of polymer samples for which measurements of uniaxial elongational viscosity is possible to take into account. The aim of this contribution consists in verification of invariantness of uniaxial elongational measurements using the SER Universal Testing Platform with respect to the dimensions of polymer samples applied. There is shown that for sufficiently broad region of admissible widths and thicknesses the results are identical. For these measurements there was used LDPE Escorene (Exxon, U.S.A.).
Klíčová slova: LDPE; planar flow; polymer melts; SER Universal Testing Platform; uniaxial elongational flow; uniaxial elongational viscosity
Číslo projektu: CEZ:AV0Z20600510 (CEP), GA103/08/1307 (CEP)
Poskytovatel projektu: GA ČR
Zdrojový dokument: Engineering Mechanics 2010, ISBN 978-80-87012-26-0

Instituce: Ústav pro hydrodynamiku AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v repozitáři Akademie věd.
Původní záznam: http://hdl.handle.net/11104/0185563

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-41445


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav pro hydrodynamiku
Konferenční materiály > Příspěvky z konference